Fortunately, in modern consumer products like watches and glow-in-the-dark stars, the radioluminescence has been replaced by photoluminescence aka phosphor that emits light of one frequency after ...

Red, pink and green colours lit up the dark skies over North Yorkshire as the Northern Lights returned to the county.

If you’re ready to shed your old self like the leaves drifting from the trees, here are seven fall hair colors for the season.

Likewise, a black heart doesn’t necessarily have any associations with death or dark emotions and is more often used as an alternative to the red heart for aesthetic reasons. Following the release of ...

Caves in South Dakota unexpectedly glow pink and blue under black light and could serve as proxies for conditions on icy ...